Sleeve



f n @eine giants gstent @frn THOMAS J. SLOAN, OF NEW YORK, N. Y., ASSIGNOR- TO EZB-A GILBER- SLEEVE, OF THE SAME PLACE.

Lam Patent No.. caslnfdafea Marci. 26, 1867.

IMPROVED WINDOW-BLIND FASTENING.

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TO ALL WHOM IT MAY CON CERN:

Be itknown that I, THOMAS J. SLOAN, of the city, county, and State of New York, have invented a new and improved Mechanism for Opening, Closing, and Controlling Window Blinds and Shutters; and I do hereby declare that the following is a full, clear,'and cxactdeseription thereof, reference being had to the accompanying drawings, making a part of this specication, in Which- Figure 1 is a rear elevation of the said mechanism as appliedto a window frame and blind.

Figure 2, a vertical section taken in the plane of the line A a, gpl, with the blind thrown open.

Figure 3, a separate View of the handle for operating this mechanism and Figure 4, a face View ofthe locking-socket which holds the handle.

The same letters indicate like parts in all the figures.

Many attempts have been made to produce a means for opening, and closing, and fastening window blinds and shutters from the inside of the house and without opening the windows, but, so far as I am informed, without success until my saidinvention.

In the accompanying drawings, a represents one side of a window frame, and b a Window blind represented as open in fig. 2, and c one part o f the hinge, which said part consists of the hinge-pin or journal, and a shank which is to be secured to the outside ofthe Window frame by screws or other equivalent means. The other part of the hinge d I prefer to .malte in the form of what is termed angle-iron that it may be secured by screws to the edge, and to one face of the blind or shutter as represented. And from this angle-piece an arm e entends out, and in under the face of this arm a socket is formed to fit and turn on the pin or journal of the part e. The blind or shutter turns on the hinge thus formed, and on another hinge of any suitable kind at the other end. The arm e is formed with bevelled cogs f in the form of a bevelled cog-wheel to engage Vthe cogs of a bevelled wheel, g, on a horizontal shaft,\h, which has one journal fitted to turn in a hole in the shank of the part e ofthe hinge, aild at right angles to the axis of the pin, but in or nearly in the plane thereof. This shaft passes through the Window frame a to the inside thereof, and through a plate, t', secured to the inner face of the window frame, which said plate serves the purpose of a box for the shaft to turn in. 'lheinner end of the shaft. is square to receive a handle or hnobhy', fitted to slide thereon longitudinally, with a spring, 71:, interposed as represented. By turning the handle or knob j inside, the blind or shutter outside can be closed or opened to any extent; and for the purpose of locking it when either entirely opened or closed, the inner end of the hub of the knob j is formed With a tapered spur, l, which lits into `a recess, m, in the face of the plate z', and the sides of this recess may also be bevelled, so that when the knob or handle is liberated after turning the shaft to either close' or open the blind or shutter by the tension ofthe spring 7c, the spur lof the knob is forced into the recess m of the plate t', and as the sides of the spur are bevelled, when thus drawn into the recess, the shaft is turned to draw and hold the blind firmly, either when closed or opened, so that. the Wind cannot get behind to move it or make it rattle. i A series of notches, n, are formed in the face of the plate z' to receive the end of the spur Z to hold the blind or shutter in any desired position between open and shut, and as in any of these positions the wind can exert considerable force on a blind or shutter, audin high Winds breakage might result, the notches n are bevelled to allow the spur to slide out and permit the Wind to either close or open theblind, butY as the spur is forced into the said notches by the tension of the spring, and the Wind cannot force the blindopen or shut without overcoming the'tension of the spring, it will follow that if the force be suicient it will close or open Y the blind, but without violence. To prevent breakage, all that is necessary to be observed is to graduate the tension of the spring and the bevel of the notches to the strength of the blind and its connections, so that it i will require less force to'force the spur out of the notches than to break the blind or its connections. Y What I claim as my invention, and desire to secure by Letters Patent, is- .The hinge having bevelled coge, in combination With the shaft extending to the inside of the Window, pro vided with a bevel cog-Wheel, and the hinge-shank constituting the hinge journal on which the blind turns, and the box in which the shaft turns, substantially as and for the purpose described.

And I also claim the combination of the hinge with its bevelled dogs, the shaft with its berelled cog-Wheel,I the spring spur on Ithe knob, and the plate or its equivalent, with a recess to receive thespur to lock the blind when either shut or open, substantially as described.

`vAnd I also claim the bevelled recesses inthe face ofthe locking plate, or'the equivalent thereof for holding g the blind or shutter at any angle desired, in combination with the spring spur, the shaft, and hinge connected by bevel gears, substantially as described.

THOS. J. SLOAN.

Witnesses:

WM. H. Bisher,

I A. DE LACY. 

